Alert archive / Montana / Winter Storm Warnings in 2022

Winter Storm Warning 12, NWS Great Falls, MT

November 29, 202211 counties in Montana

NWS Great Falls, MT issued this winter storm warning at Nov 29, 2022, 1:34 PM MST for 11 counties in Montana. It took effect at Nov 30, 2022, 8:50 AM MST. It was in force for 46 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Nov 29, 2022, 1:34 PM MST (20:34 UTC)
In effect from: Nov 30, 2022, 8:50 AM MST
Expired: Dec 2, 2022, 6:58 AM MST
In force: 46 hr
Issued by: NWS Great Falls, MT

Counties Beaverhead County, MT, Cascade County, MT, Chouteau County, MT, Gallatin County, MT, Glacier County, MT, Judith Basin County, MT, Lewis and Clark County, MT, Madison County, MT, Meagher County, MT, Pondera County, MT, Teton County, MT

The radar

The Great Falls radar (KTFX), 59 km from the middle of the area, began a volume at 20:37 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What forecasters said that day

The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Great Falls, MT wrote its last area forecast discussion before this winter storm warning went out at Nov 28, 2:45 PM MST, 22 hours 49 minutes earlier.

Area forecast discussion, Nov 28, 2:45 PM MST, 22 hours 49 minutes before

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The office that day

Everything else NWS Great Falls, MT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 29, 2:38 AM MST	Winter Storm Watch	TFX	Beaverhead, Cascade, Chouteau, Gallatin, Glacier, Judith Basin and 5 more	23 hr

Nearby

Winter Storm Warnings in Montana, 2022 Every winter storm warning in 2022

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.